Common red flags include missing the usual three-month-minus-one-day tribunal time limit, failing to contact ACAS for Early Conciliation, or resigning without first taking advice. Keep emails, letters, meeting notes and a clear timeline, and avoid exaggerating your evidence or posting about the dispute on social media. Check whether you have signed a settlement agreement, as this may affect your ability to bring a claim. Because eligibility and deadlines depend on your circumstances, consider speaking promptly to a solicitor regulated by the SRA or a recognised advice service.